DLP-MT58(nº4) Maintenance of DC generation systems and power batteries / Ordinary checks
Description of the ordinary checks performed as a preventive maintenance
Let´s see where the batteries are placed before proceeding with a maintenance check.
In the next video you will see practically how to carry out the ordinary battery maintenance checks
Watch this video about five important maintence checks of batteries.
BATTERY MAINTENANCE CHECKS
Voltage
When battery is charged voltage must be nominal + 10%. So for a 12 V battery, more than 13 V means charged. For a 24 V nominal, battery charged should reach more than 26 V.
Charging
Test battery voltage when no charging and when charging, a voltage increase must be significant. For a 24V battery, let’s guess voltage under no charge is 25.7. When charger is connected the increase should be significant, up to 26.5 volts depending on the current limiter.
Liquid level
Level in the cells must keep electrode plates perfecly submerged. Exposed electrodes deteriorates very fast, so this is a priority check.
Refill water
When liquid level is to be raised distilled water will be used. Try not to use tap water. Electrodes require a water free of particles.
Liquid density
Liquid .ensity is about 1.3 when charged and about 1.1 when discharged. The densimeter allows to absorb liquid in a safe way. After finishing the check return liquid into the cell.
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